This family of proteins includes Exo-rhamnogalacturonan lyase from Penicillium chrysogenum 31B (PcRGLX). The family also includes YetA from B. subtilis is functionally uncharacterised. This family of proteins is found in Actinobacteria, Firmicutes, Proteobacteria and fungi. Proteins in this family are typically between 863 and 928 amino acids in length. This entry represents the C-terminal alpha/alpha-toroid domain. Members of this family share a 3 domain architecture [1].

1: Crystal structure of exo-rhamnogalacturonan lyase from Penicillium chrysogenum as a member of polysaccharide lyase family 26. Kunishige Y, Iwai M, Nakazawa M, Ueda M, Tada T, Nishimura S, Sakamoto T; FEBS Lett. 2018;592:1378-1388. PMID:29574769